When a tenant illegally sublets their property through Airbnb, who bears the legal consequences? The answer from France’s highest court, delivered in two rulings on January 7, 2026 (n° 23-22.723 and n° 24-13.163), puts an end to longstanding uncertainty and clearly establishes the platform’s liability.
The facts underlying these decisions have become all too familiar: a tenant, without the landlord’s authorization, lists the rented property on Airbnb for short-term rentals, collecting income to the landlord’s detriment and often in violation of the building’s condominium regulations. The legal issue before the Court was how to characterize Airbnb’s role — and therefore which liability regime should apply to it.
The legal debate centered on a fundamental distinction in digital platform law: that between a host — a mere technical intermediary shielded by the attenuated liability regime of the French Digital Economy Trust Act (LCEN) — and a publisher, whose active role in content dissemination triggers standard tort liability. The Cour de cassation ruled decisively: Airbnb Ireland cannot claim passive host status. The company plays a structuring role in how rentals are organized — setting standards, moderating listings, providing traveler guarantees, and influencing pricing — which constitutes active intervention beyond mere technical facilitation. Classified as a publisher, the platform can therefore be held jointly and severally liable alongside the defaulting tenant, notably for restituting to the landlord the proceeds derived from an illegal sublease.
In practical terms, these rulings open significant avenues for landlords victimized by unauthorized sublettings. Until now, claims were primarily directed at the tenant, whose financial solvency is not always guaranteed. The ability to also pursue Airbnb — a solvent entity with substantial resources — considerably strengthens prospects for recovery. For condominium associations (syndicats de copropriétaires), these decisions provide an additional lever when illegal tourist rentals disrupt the use of common areas or violate building regulations. Furthermore, competing short-term rental platforms are directly affected by this case law, whose scope extends well beyond Airbnb alone.
These two rulings mark a significant turning point in the regulation of digital platforms within the rental market. Landlords facing illegal subletting now have every reason to document carefully the income generated through the platform and to consider pursuing both the tenant and the platform jointly. Legal counsel is essential to determine the most appropriate litigation strategy for each individual case.
References: Cass. civ. 1re, January 7, 2026, n° 23-22.723 and n° 24-13.163